ELECTRIC STORAGE DEVICE

PROBLEM TO BE SOLVED: To provide an electric storage device capable of prolonging the lifetime of a capacitor by a simple operation. SOLUTION: The electric storage device is provided with a plurality of capacitors 11 connected in series, a balance voltage adjusting means 13 connected to each of the...

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Bibliographische Detailangaben
1. Verfasser:	KAKIUCHI KIMIYASU
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an electric storage device capable of prolonging the lifetime of a capacitor by a simple operation. SOLUTION: The electric storage device is provided with a plurality of capacitors 11 connected in series, a balance voltage adjusting means 13 connected to each of the capacitors 11, and a control circuit 15 connected to the balance voltage adjusting means 13. The control circuit 15 measures a non-charging/discharging both end voltage (V1i, i=1 to n, n is the number of the capacitors) in non-charging/discharging of the capacitors 11, measures a charging/discharging both end voltages (V2i) of the capacitors 11 when the capacitors 11 are only continuously charged or discharged after the above measurement, determines a balance voltage (Vri) of each capacitor 11 depending on an absolute value (ΔVi) of the difference between the non-charging/discharging both end voltage (V1i) and the charging/discharging both end voltage (V2i), and causes the balance voltage adjusting means 13 to control so that the capacitor both end voltages (Vi) are each the balance voltage (Vri). COPYRIGHT: (C)2009,JPO&INPIT